Efficacy of the Prefabricated Myofunctional Appliance T4FTM in Comparison to Twin Block Appliance for Class II Division 1  Malocclusion Treatment: A Randomized Clinical Trial

Abdulfatah Abdulrazak Hanoun; Gururajaprasad Kaggal Lakshmana Rao; Mohd Fadhli Khamis; Norehan Mokhtar

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Efficacy of the Prefabricated Myofunctional Appliance T4FTM in Comparison to Twin Block Appliance for Class II Division 1 Malocclusion Treatment: A Randomized Clinical Trial

Author: Abdulfatah Abdulrazak Hanoun ¹ ; Gururajaprasad Kaggal Lakshmana Rao ² ; Mohd Fadhli Khamis ³ ; Norehan Mokhtar ²
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1. Diplomate American Board of Orthodontics, Infinite Orthodontics, Plano, Texas, United States of America
2. Craniofacial and Biomaterial Science Cluster, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, 13200, Penang, Malaysia
3. Forensic Dentistry/Oral Biology Unit, School of Dental Sciences, Universiti Sains Malaysia, 16150 Kubang Kerian, Kelantan, Malaysia
Publication Type:Journal Article
Keywords: Myofunctional appliance, T4FTM, Twin Block appliance, Class II Division 1 malocclusion
From:Malaysian Journal of Medicine and Health Sciences 2020;16(No.4):307-316
CountryMalaysia
Language:English
Abstract: Introduction: The aim of the study was to compare the changes in the skeletal and dentoalveolar structures in Malay patients with Class II Division 1 malocclusion treated by prefabricated re-mouldable customizable functional appliance (T4FTM) and Twin Block (TB) appliance. Methods: A randomised clinical trial was carried out with samples randomly assigned to active (TB appliance) and experimental (T4FTM appliance) groups. Pre- and post-treatment lateral cephalometric radiographs were taken for each subject and the overjet was clinically measured at the same intervals. 20 angular and linear measurements were chosen and measured separately. Results: Independent t test was used to compare the changes between the two groups. A significant difference between the groups was seen with overjet at 2.14 mm (p < 0.01), Sv_Pog distance at 1.83mm (p < 0.05), Sv_ii distance at 2.55 mm (p < 0.001), horizontal distance from the upper to the lower incisor tip at 1.81 mm which was statistically significant (p < 0.05). The other variables SNB and ANB angles too showed a significant difference. However, all the favourable changes were noted in the TB group. Conclusion: T4FTM appliance could be an effective appliance for the management of British Standard Institute's Class II Division 1 malocclusion on Class II skeletal pattern. However, the TB group differed significantly and had a more favourable correction in terms of the sagittal skeletal and dentoalveolar discrepancy.
Full text:11.2020my0966.pdf